Quantum groups and noncommutative spacetimes with cosmological constant

A. Ballesteros, I. Gutierrez-Sagredo, F.J. Herranz, C. Meusburger, P. Naranjo
Journal of Physics: Conference Series, vol. 880 (2017) 012023
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Noncommutative spacetimes are widely believed to model some properties of the quantum structure of spacetime at the Planck regime. In this contribution the construction of (anti-)de Sitter noncommutative spacetimes obtained through quantum groups is reviewed. In this approach the quantum deformation parameter $z$ is related to a Planck scale, and the cosmological constant $\Lambda$ plays the role of a second deformation parameter of geometric nature, whose limit $\Lambda\to 0$ provides the corresponding noncommutative Minkowski spacetimes.